公开(公告)号：US11609718B1

公开(公告)日：2023-03-21

申请号：US16937331

申请日：2020-07-23

Applicant: PURE STORAGE, INC.

Inventor： Ronald Karr ,  Constantine Sapuntzakis ,  Mark McAuliffe ,  Farhan Abrol ,  Neil Vachharajani ,  Timothy Brennan

IPC: G06F3/06 ,  G06F11/20 ,  G06F11/10 ,  G06F11/30 ,  G06F11/07 ,  G06F11/16 ,  G06F11/14

Abstract: Staging data on a storage element integrating fast durable storage and bulk durable storage, including: receiving, at a storage element integrating fast durable storage and bulk durable storage, a data storage operation from a host computer; storing data corresponding to the data storage operation within fast durable storage in accordance with a first data resiliency technique; and responsive to detecting a condition for transferring data between fast durable storage and bulk durable storage, transferring the data from fast durable storage to bulk durable storage in accordance with a second data resiliency technique.

公开(公告)号：US11487438B1

公开(公告)日：2022-11-01

申请号：US17025036

申请日：2020-09-18

Applicant: PURE STORAGE, INC.

Inventor： Frederic Lherault ,  Neil Vachharajani

IPC: G06F3/06 ,  G06F12/02 ,  G06F9/455

Abstract: Systems, methods, and computer readable storage mediums for discovering volumes which are good candidates for space reclamation. A storage subsystem identifies the file system storage capacity for a given volume from the file system metadata of the given volume. Then, the storage subsystem compares the file system capacity of the given volume to the allocated capacity on the storage subsystem. If the allocated capacity is greater than the file system capacity by a given threshold, the storage subsystem marks the given volume as a candidate for space reclamation and generates an alert to the user to reclaim the space of the given volume.

公开(公告)号：US11296944B2

公开(公告)日：2022-04-05

申请号：US15922974

申请日：2018-03-16

Applicant: Pure Storage, Inc.

Inventor： Taher Vohra ,  Patrick East ,  Neil Vachharajani

IPC: H04L12/24 ,  H04L41/0893 ,  H04L41/22 ,  G06F3/06 ,  H04L45/24 ,  H04L67/1097 ,  H04L41/12 ,  H04L41/0803

Abstract: Policy based path management, including: identifying a plurality of data communications paths between a storage system and an entity that issues input/output (‘I/O’) operations to the storage system; selecting, in dependence upon a path selection policy, a subset of data communications paths from the plurality of data communications paths between the entity and the storage system; and issuing, from the entity to the storage system, I/O operations using only the subset of data communications paths.

公开(公告)号：US10929231B1

公开(公告)日：2021-02-23

申请号：US15967431

申请日：2018-04-30

Applicant: PURE STORAGE, INC.

Inventor： Andrew Bernat ,  Timothy Brennan ,  Jimmy Chi-Wai Chui ,  Alan Driscoll ,  Grigori Inozemtsev ,  Benjamin Scholbrock ,  Neil Vachharajani

IPC: G06F11/14 ,  G06F3/06

Abstract: Ensuring crash-safe forward progress of a system configuration update in a storage system that includes a storage array controller and a plurality of storage devices, including: determining a number of storage devices in the storage system; determining a number of unavailable storage devices in the storage system; and determining, for the one or more system configurations, whether the system configuration can be reconstructed in dependence upon the number of storage devices in the storage system and the number of unavailable storage devices in the storage system.

公开(公告)号：US10509581B1

公开(公告)日：2019-12-17

申请号：US15800518

申请日：2017-11-01

Applicant: Pure Storage, Inc.

Inventor： Farhan Abrol ,  Mark Mcauliffe ,  Neil Vachharajani

IPC: G06F3/06 ,  G06F15/16

Abstract: Maintaining identifier service consistency within a storage system, including, responsive to a write operation for a dataset: assigning an identifier for the write operation, wherein the identifier is equal to a current identifier from an allowable set of identifiers; storing, within a metadata header for the dataset, metadata indicating the assigned identifier; and incrementing the current identifier; and responsive to determining that the incremented current identifier has caused a reservation event: updating a range corresponding to the allowable set of identifiers.

公开(公告)号：US10353777B2

公开(公告)日：2019-07-16

申请号：US14927977

申请日：2015-10-30

Applicant: Pure Storage, Inc.

Inventor： Andrew Bernat ,  Timothy Brennan ,  Jimmy Chi-Wai Chui ,  Alan Driscoll ,  Grigori Inozemtsev ,  Benjamin Scholbrock ,  Neil Vachharajani

IPC: G06F3/06 ,  G06F11/10 ,  G06F11/14

Abstract: Ensuring crash-safe forward progress of a system configuration update in a storage system that includes a storage array controller and a plurality of storage devices, including: determining a number of storage devices in the storage system; determining a number of unavailable storage devices in the storage system; and determining, for the one or more system configurations, whether the system configuration can be reconstructed in dependence upon the number of storage devices in the storage system and the number of unavailable storage devices in the storage system.

公开(公告)号：US12143269B2

公开(公告)日：2024-11-12

申请号：US17701321

申请日：2022-03-22

Applicant: PURE STORAGE, INC.

Inventor： Taher Vohra ,  Patrick East ,  Neil Vachharajani

IPC: H04L41/0893 ,  G06F3/06 ,  H04L41/0803 ,  H04L41/12 ,  H04L41/22 ,  H04L45/24 ,  H04L67/1097

Abstract: Path management for container clusters that access persistent storage, including: configuring a container cluster to issue input/output (‘I/O’) operations to a storage system that provides persistent storage resources to the container cluster via a set of one or more data communications paths between the container cluster and the storage system; detecting a change to one or more data communications paths between the container cluster and the storage system; selecting, in dependence upon a path selection policy, an updated set of one or more data communications paths between the container cluster and the storage system to utilize for issuing I/O operations from the container cluster to the storage system; and issuing, from the container cluster to the storage system, I/O operations using the updated set of data communications paths.

公开(公告)号：US11762764B1

公开(公告)日：2023-09-19

申请号：US17223522

申请日：2021-04-06

Applicant: PURE STORAGE, INC.

Inventor： Peter Kirkpatrick ,  John Colgrove ,  Neil Vachharajani

IPC: G06F12/02 ,  G06F12/10 ,  G06F3/06

CPC classification number: G06F12/023 ,  G06F3/068 ,  G06F3/0619 ,  G06F3/0631 ,  G06F3/0659 ,  G06F3/0683 ,  G06F3/0685 ,  G06F12/10 ,  G06F2212/1044

Abstract: Writing data in a storage system that includes a first type of storage device and a second type of storage device, including: selecting, for one or more unprocessed write requests, a target storage device type from the first type of storage device and the second type of storage device; issuing a first group of write requests to the first type of storage device, the first group of write requests addressed to one or more locations selected in dependence upon an expected address translation to be performed by the first type of storage device; and issuing a second group of write requests to the second type of storage device, the second group of write requests addressed to one or more locations selected in dependence upon a layout of memory in the second type of storage device.

公开(公告)号：US11662909B2

公开(公告)日：2023-05-30

申请号：US17667756

申请日：2022-02-09

Applicant: PURE STORAGE, INC.

Inventor： Marco Sanvido ,  Richard Hankins ,  Mark McAuliffe ,  Neil Vachharajani

IPC: G06F3/06 ,  G06F12/121 ,  G06F12/02

CPC classification number: G06F3/0608 ,  G06F3/0619 ,  G06F3/0641 ,  G06F3/0665 ,  G06F3/0689 ,  G06F12/023 ,  G06F12/0292 ,  G06F12/121 ,  G06F12/0238 ,  G06F2212/401 ,  G06F2212/7201

Abstract: A system and method for efficiently maintaining metadata stored among a plurality of solid-state storage devices. A data storage subsystem supports multiple mapping tables. Records within a mapping table are arranged in multiple levels. Each level stores at least pairs of a key value and a physical pointer value. The levels are sorted by time. New records are inserted in a created new highest (youngest) level. No edits are performed in-place. A data storage controller determines both a cost of searching a given table exceeds a threshold and an amount of memory used to flatten levels exceeds a threshold. In response, the controller incrementally flattens selected levels within the table based on key ranges. After flattening the records in the selected levels within the key range, the records may be removed from the selected levels. The process repeats with another different key range.

公开(公告)号：US11169817B1

公开(公告)日：2021-11-09

申请号：US16401369

申请日：2019-05-02

Applicant: PURE STORAGE, INC.

Inventor： Marco Sanvido ,  Richard Hankins ,  Mark McAuliffe ,  HuiHui Cheng ,  Nidhi Doshi ,  Naveen Neelakantam ,  Neil Vachharajani

IPC: G06F9/00 ,  G06F15/177 ,  G06F9/4401

Abstract: A system and method for efficiently starting up a plurality of solid-state storage devices. A computing system includes one or more storage devices storing data in multiple allocation units (AUs). In a boot region, a data storage controller maintains an AU management set that identifies a state of various AUs in the system. In various embodiments, the management set includes an identification of a subset of free AUs, transitional AU, unincorporated AUs, and speculative AUs. At various times, information corresponding to the AU management set is stored to non-volatile storage. During a boot sequence, the AU management set information is accessed and the identified AUs are searched to identify allocated AUs rather than performing a search of all of the AUs in the system.